Using External Namespace


using System;

namespace First
{
    class Employee
    {
        // Member variables
        private string fname = "John";
        private string lname = "Smith";

        //Methods
        public string getFname()
        {
            return fname;
        }
        public string getLname()
        {
            return lname;
        }
    }
}

namespace Second
{
    class employer
    {
        static void Main(string[] args)
        {
            First.Employee e = new First.Employee();
            String first_name = e.getFname();
            String last_name = e.getLname();
            Console.WriteLine("Name of the employee: " + first_name + " " + last_name);
            Console.ReadLine();
        }
    }
}

Output:
Name of the employee: John Smith